Multi-agency and multi-jurisdictional information sharing has become one of the most salient law enforcement challenges in today’s society. Information sharing among police agencies has been historically difficult because, first, many agencies still maintain paper records and, second, sharing electronic information is only possible if the agencies share the same RMS vendor. Ohio has developed a solution to its information sharing challenges among its 900 law enforcement agencies by creating OLLEISN. OLLEISN’s information-sharing process was adopted from the 11-step Information Integration Planning Model offered by the International Association of Chiefs of Police. The article focuses on describing each of the 11 steps in turn, which include involving stakeholders, developing a governance structure and decisionmaking process, developing goals, determining the scope of the project, completing a needs assessment, creating the information system, assessing costs, and evaluating and maintaining the system. In March 2005, 20 Ohio police agencies connected to OLLEISN; readers are directed to a Web site for project updates. Endnotes